Rotary cutter



Feb'.27,1923. l l 1,447,0"91L, R. H. LANSING.

ROTARY CUTTER.

FILED APR. 6. 1921. I 3 SHEETS-SHEET1.

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IN/EN-rof? RH. LANSING.

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R. H@ LANSING.

ROTARY GUTTER.

FILED APH. 6, i921. A3 SHEETS-SHEET 2.

FI G E INVLNTOR TR, HLANSWG AT1-OR Nr.

R. H. LANSING.

ROTARY CUTTER.

msn APR. 6, i921.

Feb. 27, 1923.

all

RGMY mmm; 19m m@ T MH A w DH.

Athe opposite sides thereof.

Patented Fels:o E?, i923.

miren srnresea'ren'r ortica.

Brennan H. LANSING, or Unicorns FALLS, MASSACHUSETTS.

ROTARY Application filed April (5,'

To all 107mm t may con ccm Be it known that RICHARD filmnews, n. citizen of the United States of america. residing` at Chicopec Falls. in the county of Hampden and State of lilassacliusetts, has invented certain new and useful limprove-` ments in Rotary Cutters, of which the following is a Speciiication.

This irmnition relates to improvements in shearing' machines and its leadingI object is to provide a machine forshearing' fabric by a diagonal cut and embodies a traveling .rotary cutter and means for imparting a forward and a reverse movement to this cutter together with means for raising' a cutter to an inoperative or non-cuttinrrr position 'when the cutter reaches `the end of itscuttino' stroke. j

lV ith the above and other objects in view this invention relates to certain nen7- and. useful constructions, combinations and ar rangements of parts clearly described,inthel following specification and fully illustrated in the accompanying' drawings, in which:

Figure l is a plan view. f

Figure 2 is a side elevation.

Figure 3 is a Vvertical sectional viewon an enlarged scale of the cutter and its beams.

Fig. L is a side elevation of the knife carrier, 1with the statioiiary cutting;- element shown in section. i I

Referring to the accompanvingdrawings 5 designates one side of a frame and 6 `the opposite side thereof. 'Gny this frame y a shearing mechanism including the guides 7 and 8 and the connectii'ur I beams 9 and. are arranged. Two `oniides 7 are secured to the I beam 9 and two guides 8 are se-` cured to the I beam 10 and each of said Iaides is provided with a longitudinal guidingrib or Hanne ll located midway between Two pairs of nudes?Y and 8 are spaced from each other to receive al carrier frame consisting` of the head plate l2 and the side plates 15 and 14:. The side plates 13 and lll are spaced from cach other'and carry on their lower ends the A'uide members 'l5 and i6 which `are provided with loi'ig'itndinal grooves to receive the base cuide ribs ll. While the head plate l2 is provided with Similar qroowf'cs to receive the top guide ribs 11. The s' le plates 13 and lli are provided with vertically disposed lQjuidc ways 17 and 1S in which the cxtensions i9 and 20 of the sheari j knife frame 2l are arranged to Slide 'ver 'i ljv.

CUTTER.

1921, Serial N0. 459,185.

The shearing knife frame 2l has a rotary `knife 22 journaled thereon by means of the carries eccentrics and 31 which are adapted to engage the horizontal shoulders 32 and of the frame 21. The operating cable or rope 34 is secured at one end to one arm of the lever 25 and at the other end to the other armof4 said lever, said lever having arms ydisposed atright angular relation to each other, so th at when the rope pulled in one direction the lever will be swung` on its axis due to the act-ion 'of the `eccentrics 30 and 31 and the cutting Wheel 22 will be elevated from cutting engagement with the cutting` element andlwhen the rope is pulled in the opposite direction the cutting Wheel will be lowered.

' One end of the operatingv cable or rope 34 is secured to the Winding` drum or grooved Wheel 37 and the other lend is secured to a similar 7gfrooved wheel 38 both of Which are arranged on. the opposite end vportions of the shaft 39 journaled on the frame ineinbers 5 and '6. The frame member 6 is considerabl7 longer than the frame member and supports one end4 of the eccentric Shaft 4,0, the other end of'Which is supported by the frame member 5. The eccentric shaft er() carries on. one end an eccentric Lil which is engaged bythe eccentric Strap ll2 and to this eccentric strap ll2 a pitnian or rod 43 is connected. rlhe rod 43 is pivotally connect ed at flee With the rod 45 he lower end of which is pivoted at ,46 to the frame and the upper end of which is slotted and pivotally connected to the racl: bar et? which arranged to slide on the guide head 48. The rack head i8 enga-,ees a pinion gear 4:9 carried by the shaft 39.

The other end portion of the shaft 39 ear ries a pinion gear which is engaged by the rack 51 and this rack slides o n a guide head similar rto the guide head 3 and Said rack is iivotall)v connected at with the connectini); rod which is pivotallv connected With the ]iiitman rod 54: connected with the eccentric strap of the eccentric which is mounted on the shaft Ll0. The length of the cable 231i leading troni the pulley or grooved ivheel 37 engages guide wheel 57 mounted on the bracket 5S secured to the traine meniher 6 and said c-ahle then page ove a grooved guide Wheel 59 journaled on a vertical axis on one end ot the guide liars ol` the shearing mechanism and then passes ove another guide pulley Gt) on the opposite end ot said guide liars and engages a pulley ivheel (il mounted on the bracket (32 'arried hlv the traine n'ien'iher 5. The cahle is then past ove and secured to the grooveil wheel T he shaft et() carries relatively l: rge gears and (il which re driven hiv pinion gearfs and GG tarried hv the shat't o? journaled on said traine members and (3' one end ot which is provided u'ith stepped lielt driven pulleys (S8. livhen the Shai'ft (3T driven the lalile 3l will lie driven in vone direction and then in the opposite direction due to the action ot the racks and the eccentric-5l and when the cutter moved liv the cahle ranches the liniit ot its cutting stroke the reversel inovenient ot the cable \vill litt the cutter to inoperative position and the critter will he maintained in this position during its return inoven'ient. During its cutting' Stroke the cutter ivill 'roll against the fabric and thus produce an etlicient cuttingaction on the tahrie. The eccentric mechanism ia old and Well knoivn in this art. the invention consisting' in the knife carrier and the menne in combination With the eccentric mechanism tor autolnatiallv shitting the knite to a iioii(futting position on the return movement ot the knite,

Havilig described nrv invention claini:

l. A Sheariiig machine compriing a tran'ic. ai guide ar 'anged on the 'trame in i'liagvlnal relatioii to the traine, a cutter trame niovable on the guide, a cutter having rotar).Y movement on Saidy cutter trame and relative vertical movement thereon, nic-ans: tor shitting the cutter verticall)v on said cutter traine`l a ahle connected with said cutter t'or moving the saine on said guide and means for operating said cable to drive. the same in lioth directions.

2. A shearing machine coniprieing a traine. a guide iocated cliagonall`\Y with relation to the taine. a second trame Slidalile on Said guide. a cutter having verti al moveA nient on said second traine and adapted to rotate on said second trame. munis tor shitting said cutter vertically on Said second trame. and m sans vtor n'ioving said cutter on said guide in 1ooth directions.

A shearing machine comprising` a traine. a guide located diagonally with relation to the traine. a second traine slidalile on said guide. a cutter havingl vertical movement on Said second 'traine and adapted to rotate on Said second traine. meanty tor Shifting said cutter verticali)Y on said second trame.y meane tor moving Said cutte ou Said guide in' hoth directiona and nieansi tor automaticallv reversing said driviiig .means ivhea said cutter rtf-aduce,` the end ot movement in either direction.

et. A shearing machine comprising a guide. a traine slidahle on the guit e.y a sca*- ond traine Slidahle on :Said lirst trame, Said second traine having a rotar) cutter mount ed thereon` an eccentric lever carried h v Said Second traine and arranged to verti lallir lShitt said second traine and cutter on said iirst- 'lira/me, andpdriving means connected ivith said ecctntrie lever. i

Qi shearing machine coinprieing a guide. a Ytrame Islidahle on the guide. a second 't laine slidahle on said first trame. said second traine harinal a rota rlv cutter niounted thereon, an eccentric lever arricd h v said Second 'tran'ie and arranged to vertically Shi'tt said. second traine and cutter on said tiret traine. and connected with Said eccentric lever.

G. cutter head comprising a 'traine having a rotary knife pivoter] thereon. vertical guides for the traine. said guides having shoulders. eccelitricsj (.ngaging the shmilders to verticall)v Shift the traine a nd the guides. and levers connecting with the eccentrica .tor operating the saine to verticallyr shi'tt the -trame and the rotar)7 knit'e.

Signed h v ine at (liicopee Falle. I

RICHARD ll. LANSING. 

